Well, I'm not really a greybeard, but since I've been settling both the crack and the wash I haven't seen any white gunk in the clear filter.
-M Thomas Kelly wrote: >Mike, > I let mine settle for a week when I can. It washes much easier. I doubt >that it does anything for an incomplete reaction though. That is to say, I >don't think the unreacted oil will settle out. > >But: > I have been wondering about something. > When I started making BD it would never pass the methanol quality test. >I inevitably got emulsions in the wash. Now, when I make BD for my >"oil"-fired boiler, I use only about 16-17% (vol/vol) of methanol. The BD >does not pass the quality test, but I don't have the same emulsion problems. >Is it because I let it settle longer (24+ hours vs 6 - 8 hrs)? > Does the presence of a small amount of glycerine/soaps make that much of >a difference when trying to wash BD from an incomplete reaction? > > Tom > > >----- Original Message ----- >From: "Mike Weaver" <[EMAIL PROTECTED]> >To: <biofuel@sustainablelists.org> >Sent: Monday, August 06, 2007 2:46 PM >Subject: Re: [Biofuel] Biofuel Quality Test > > > > >>FWIW - I let the batch settle for a week or so (the lazy man's way) and >>that also seems to help w/ this. >> >> >>Thomas Kelly wrote: >> >> >> >>>Shawn, >>> >>> I suspect that the "dense substance at the bottom of the flask" was >>>unreacted glycerides, indicating an incomplete reaction. >>> >>> I now drain a sample of the mix towards the end of processing. >>> - Shut off the pump >>> - Drain a sample and turn the pump back on >>> - Allow the glycerin to settle for a few minutes >>> - Perform Jan W's quality test on the top (crude BD) layer >>> >>> There is still glycerin in the mix, but if I have succeeded in >>>getting >>>a complete reaction, I do not get an insoluble residue on the bottom. >>> >>> I repeat the test after washing the BD. It is a quick, easy test, and >>>the >>>result, whether it passed or failed can be added to the methoxide for your >>>next batch ..... no wasted methanol, costs nothing to perform the test. >>> Best to You, >>> Tom >>> >>> >>>----- Original Message ----- >>>From: "shawn patrick" <[EMAIL PROTECTED]> >>>To: "Biofuel Mailing List" <biofuel@sustainablelists.org> >>>Sent: Friday, September 07, 2007 9:03 AM >>>Subject: [Biofuel] Biofuel Quality Test >>> >>> >>> >>> >>> >>> >>>>Good Day All, >>>> >>>>My question is in regards to the Quality test develop by Jan Warnqvist. >>>>Is >>>>this test to be performed on the product before or after the glycerin has >>>>been removed, or does it matter. I performed the test with out removing >>>>glycerin and found that I got a clear bright phase except you could tell >>>>that there was a more dense substance at the bottom of the flask. I >>>>assumed >>>>that was the glycerin since just extracted a sample from the process >>>>without >>>>separating BD from glycerin. Does the glycerin dissolve in the methanol?? >>>>Was I looking at the unprocessed materials in my BD?? >>>> >>>>Regards >>>> >>>>Shawn Patrick >>>> >>>> >>>> >>>>_______________________________________________ >>>>Biofuel mailing list >>>>Biofuel@sustainablelists.org >>>>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >>>> >>>>Biofuel at Journey to Forever: >>>>http://journeytoforever.org/biofuel.html >>>> >>>>Search the combined Biofuel and Biofuels-biz list archives (50,000 >>>>messages): >>>>http://www.mail-archive.com/biofuel@sustainablelists.org/ >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>> >>>_______________________________________________ >>>Biofuel mailing list >>>Biofuel@sustainablelists.org >>>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >>> >>>Biofuel at Journey to Forever: >>>http://journeytoforever.org/biofuel.html >>> >>>Search the combined Biofuel and Biofuels-biz list archives (50,000 >>>messages): >>>http://www.mail-archive.com/biofuel@sustainablelists.org/ >>> >>> >>> >>> >>> >>_______________________________________________ >>Biofuel mailing list >>Biofuel@sustainablelists.org >>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org >> >>Biofuel at Journey to Forever: >>http://journeytoforever.org/biofuel.html >> >>Search the combined Biofuel and Biofuels-biz list archives (50,000 >>messages): >>http://www.mail-archive.com/biofuel@sustainablelists.org/ >> >> >> >> >> > > > >_______________________________________________ >Biofuel mailing list >Biofuel@sustainablelists.org >http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org > >Biofuel at Journey to Forever: >http://journeytoforever.org/biofuel.html > >Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): >http://www.mail-archive.com/biofuel@sustainablelists.org/ > > > _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (50,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
